Adding and recording machine.



PAI'BNTBD AUG. 28, 1906.

A; K. BRSLAND. ADDING AND REOORDING MACHINE.

APPLICATION IILfiD APR. 26, 1905.

10 SHEETS-SHEET; 1.

PATENTED AUG. 2 1906.

A. KPERSLAND. ADDING AND RECORDING MACHINE.

APPLICATION FILED 26, 1905.

10 SHEETS-SHBET 2.

INVENTOI? AUDRNEY'S' A PATENTED AUG. 28, 1906.

' A. K. ERSYLAND.

ADDING AND RECORDING MACHINE. APPLICATION TILED 1m. 26, 1905 1o SHEETS-SHEET a.

INVENTOR jiEru'la znd WITNESSES: a By A. K. ERSLAND. ADDING AND RECORDING MACHINE.

APPLICATION FILED APR. 26, 1905.

WITNESSES: INVENTOR BYZ I I ATTORNEYS PATENTED AUG. 28, 1906.

10 SHEETS-SHEET 4.

- v No. 829,769. 4 PATENTBD AUG. 28, 1906.

A. K. BRSLAND.

ADDING AND RECORDING MACHINE.

APPLICATION IILBD APE-26,1905.

10 SHEETS-SHEET 6 avlrnzssss: I mmvron finqo' iii 'sland ATTORNEYS A. K. ERSLAND. ADDING AND RECORDING MACHINE.

APPLICATION FILED APB.26,1906.

10 SHEETS-SHEET 6.

mmssfs:

PATENTED AUG. 28, 1906.

PATENTED AUG; 28, 1906.

A. K. ERSLAND.

ADDING AND RECORDING MACHINE.

APPLICATION FILED APR. 26,1905.

10 SHEETS-SHEET 'l.

FQNN

a M H ATTORNEYS PATENTED AUG. 28

A. K. ERSLAND. ADDING AND RECORDING MACHINE.

APPLICATION FILED APB. 26 1905.

10 snnm-snsm 8.

EN 5 kw M T. N EL y N @rzaaKEraZaW ATTORNEYS A. K. ERSLAND.

ADDING AND RECORDING MACHINE.

APPLICATION FILED APLZG, 1905.

10 SHEETS-SHEET 9.

IN VE N TOR ATTORNEYS PATENTED AUG. 28, 1906.

UNITED STATES PATENT OFFICE.

AMOS K. ERSLAND, OF FRUITHURST, ALABAMA.

To all whom it may concern:

Be it known that I, AMos K. ERSLAND, a citizen of-the United States, and a resident of Fruithurst, in the county of Cleburne and State of Alabama, have invented a new and Improved Adding and Rec'ording Machine, of which the following is'a full, clear, and eXact description.

My invention relates to that class of adding-machines in which a carriage or traveling member moves automatically from order to order as the registering-keys are operated.

Machines of this class may be conveniently divided into. two subclasses. In the first the carriage moves from right to left from order to order as the registering keys are operated. The lowest figure of any sum is necessarily added first in this class of machines and each successive figure to the highest is added subsequently. Consequently the carriage moves automatically from the initial point. In the second class the carriage moves in the opposite direction or from left to right as the re istering-keys are operated. Heretofore this has generally necessitated that the carriage be previously set by an extra set of keys or levers at the highest order corresponding to the first figure in the sum added.

The objection to the first class is that the figures are struck off in the wrong order on the kevsthat is, contrary to the usual method of Writing and reading. This leads to confusion and leaves the way open for many errors.

The second class of machines referred to does away with this objection; but on 210-" count of the necessity of striking an extra key for each sum added to set the carriage .it calls for an addition to the physical exertion of the operator and is especially objectionable 011 account of the ad'dit'i'onal possibility 1 of error and the necessity of causing the operator to use additional :t'ho-u'gh t in operating the machine.

One of the principal objects of my invention is to construct an addin- .and recording machine'th at will do away with of both of the classes :of machines above referred to and at the same time retain the merits of both. In carrying out this object I construct a machine in such 'a-manner'that the carriage moves automatically in adding; and returns to the initial position without, necessitating any setting of the carriage for; the order of tlie'left-hand fi ure, and yet at" at the highest.

the same time it provides t Specification of Letters Patent.

Application filed April 26, 1906. serial No. 267,443.

the objections ADDING AND RECORDING MACHINE.

Patented Aug. 28, 1906.

figure of any sum shall be struck ofi first on the registering-keys, each successive figure being struck off in the natural order.

My invention also comprises means for lOCklIlg the key-levers in such a way as to secure the desired rotation of the typewheels, also novel means for carrying from a lower to a higher order, means for correcting errors before the sum in added, and additional features which will appear in the course of the subjoined description.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters ofreference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal vertical sectional 'view of a machine constructed in accordance with the principle of my invention, taken on the line 1 1 of Fig. '2. Fig. 2 is a sectional view of the same on the line 2 2 of Fig. 1. Fig. 3 is asectional view on the line 3 3 of Fig. 2. Fig. 4 is a sectional view on the line 4 4; of Figs. 1 and .2. Fig. 5 is a sectional view on the line 5 5 of Fig. 2. Fig. 6 is an elevation of the left side of the machine with the outer casing removed and showing parts in section. Fig. 7 is an elevation similar to Fig. 6, showing parts in a different position and certain additional features. Fig. 8 is an elevation of the right end of the machine, showing a part of the casing in section, part of the casing being removed. Fig. 9 is an elevation of the left end ofthe machine with part of the casing in section tion of a detail, showing parts in section.

12 is a perspective view of a detail. Fig. 1.3 is a section'al'view'on the line 13 13 of Fig. 1. Figs. 14 and 115 are perspective views of details. Fig. S16 is .a side view, partly in section, of a detail. Fig. 17 is a rear elevation of a certain "portion of the\machine. Fig. 18 is a plan of a detail, and Fig. 19 isasectional view 011131165111161919 ofFig. 18.

; Fig. 11 is -:a sectionalview of a detail. Fig.

Outsidecamng and frame.-Referring first to Figs. 1 and 2, the machine is preferably mounted upon a base 25 and has a front casing 26, resting upon the base and provided with a vertical section covering the lower portion of the i'ront of the machine and provided with slots 26 for keys. On the right side of the machine is a casing 27 and on the left a casing 28. A rear end Wall 29 is provided and atop 30. An additional removable section 31, covering part of the top and front, is also provided. This sec- 1 tion rests above the slots 26 and affords a limit for the upward motion of the keys. At each side of the machine at a distance from the casings are two side plates 32, which are joined at the front by a transverse horizontal late 33. Secured to the base are upwardly-extending arms 34, which are also secured to the side plates 32. A transverse bar extends across the rear of the base of the machine and is provided with upturned arms 36, upon which rest the rear ends of the side plates 32,, so as to support the same in elevated osition at this point. A transverse bar 37 a so extends across the machine, and this is provided with standards 38, secured to the arms 36 and to the rear ends of the side plates 32. The side plates are also joined together at the front by a transverse bar 39.

Main shaft and carriage connections-A main shaft 40 is mounted in journals 41 upon the side plates 32. A plate 42, having a hub 43, is mounted upon the main shaft 40 next to the outside of the right journal 4]. and secured thereto by a pin or rivet 44. The plate 42 is provided with an extended point 45 and with a circular segment 46. An outwardly-extending sto 47 is mounted upon a bracket 48 in front 0 the main shaft,

and a similar stop 49 is mounted upon a bracket 50, at the rear of the shaft on the right-hand side plate 32. These stops are adapted to limit the oscillation of the main shaft in either direction by being in the direct path of the extension 45. In initial position the extension 45 rests against the stop 47, as indicated in Fig. 8. Mounted loosely upon the hub 43 is a carriage-return lever 51, which has a slot 52 and an aperture 53.

. Loosely mounted upon a pivot 54, located in the slot 52, is a bell-crank comprising a sto -pawl 55, adapted to engage the rear su ace of the extension 45 and having a connecting section 56, upon which it is pivoted. It is also provided with a lever 57. The lever is adapted to unlock the stop-pawl 55 by coming in contact with the stop 47 as the extension 45 is coming into initial position. A stop-pin 59 is mounted upon the arm 51 for the purpose of limiting the motion of the bell-crank 56, and a spring 60 is employed for normally holding the bellcrank in contact with the stop-pin. A collar 61 is mounted upon the shaft 40 to keep the lever 51 in proper position. The main shaft passes through the right-hand casing 27 and is provided'with a crank 62, secured to the shaft by a pin 63, and having an operatin'g-handle 64.

It will be understood that the oscillation of the shaft 40 through the operation of the crank 62 will cause the oscillation of the return-lever 51. The extension 45, which is rigidly connected with the shaft, turns with it, and from the initial position shown in this position the rear of this extension will come in contact with the stopawl 55, so as to swing the lever 51 with it to t e position indicated in dotted lines. Upon its return stroke it will also pick up the lever by engaging the arm 57 and carry it back until the arm 55 engages the stop 47,which will disengage the arm 57 from the extension 45. The purpose of moving this element will be referred to below.

Carriage escapement.1 have provided means whereby the carriage mounted on the shaft 40 is provided with an escapement, so as to insure its feeding forward one step at a time when any key is struck, Figs. 2, 3, and 10. A transverse vertical bar 65 is mounted upon the rear of the machine and is provided with arms 66, by'which it is secured to the side plates 32. Thebar is provided with a longitudinal slot 67, to the rear of which is a plate 68, fixed to the bar or rail 65 as an extra support for a stud or pivot 69. This stud or pivot is mounted to the left of the slot and near the middle of the rail. Mounted upon it is a lever which has a pawl 70, extending to the right, adapted to engage a rack,to be described. Extending to the left from the pawl is a lever 71, rigidly connected with it. A spring 72 presses the pawl against the rack. A lever 73 is mounted upon a stud 7 4,fixed to the left standard 38. This lever is provided with a tooth 75 and with a lug 76, both extending upwardly from the lever. The lever terminates in an extension 77, which is connected, by a pivot 78, to downwardly-extending operating-rod 79. The carriage consists chiefly of a hollow tube 80, which is loosely mounted on the main shaft 40 and is adapted to-freely slide thereupon between the two side plates 32. At the rear of the carriage is a vertical transverse bar 81, connected with a frame 82. The lower edge of the bar 81 is provided with two kinds of teeth, one set 83 constituting a rack for engagement with the pawl 7 O and the other set 84 constituting a series of stops for engagement with the projection 75. The operating-rod 79, as will be obvious, constitutes means for feeding this bar, and consequently the carriage, forward a step at a time. When the rod 79 is raised, the projection 75 will pass between two of the teeth 84 and constitute a stop forpreventing the carriage from moving beyond that point. The projection 76 also engages the lever 71 and disengages the pawl from one of the teeth 83. This permits the carriage to be moved forward by a means to be described until the next tooth 84 engages the projection 75. When the rod 79 is drawn downwardly again, the pawl 70 is free to be forced by the spring 72 against the rack and into is struck to register a number.

- 82 is provided with a transverse bar 85, hav-' simultaneously withdrawn from engagement with a tooth 84. The bar 79 is connected up in a manner which will be referred to later, soas to cause this operation every time a key The frame ing right-angled arms 86, secured to the rear of the frame, Fig. 11. The tube 80 is secured to the frame 82 by pins 87, and journals 88, extending downwardly and supporting a transverse bar 89 with right-angled arms 90, are secured to the outside of the frame 82. The parts 81 and 82 are preferably formed in two pieces, having projections.

81 and 82 parallel with each other and secured together in any desired manner. The teeth 84'are preferably out upon the lower side of both of theseprojections, the projection 81 also being provided with teeth 83, but the projection 82 is preferably, made without these teeth- This gives room for a pair ofescapement-levers 73, the lever 71 being wide enough for two projections 76 to engage with it. Through the right journal 88 of the frame 82 passes a perforation 91, above which is a stud 92, having an aperture for receiving a spring 93. The opposite end of the s ring is secured to the left side plate 32, an it constitutes the motive power for moving the carriage from right to left.

Extending from the rear of the journal 88 is a finger 94, which is adapted to slide in the slot 67 when the carriage moves for thepurpose of vibration.

It will be seen from the construction so far described that a carriage is provided upon the shaft 40, and this carriage has means for giving it intermittent motion from right to eft This carriage is designed for the purpose of .sup orting and moving the type-- wheels, Whic will now be described.

T ypewheeZs.-Loosely mounted upon the right end of the tube are a series of typesupports 97, which I shall designate as typewheels, Fig. 1. Each of these is provided with a series of ratchet-teeth 98, preferably nine in number, and with a series of gearteeth 99 upon the opposite side. Attached to the right side of each wheel 97 is a hub 100 for giving the correct spacing on the carriage-tube 40. These hubs come in contact with each other or with the adjacent faces of the other wheels. Extending downwardly from the lower end of each series of ratchetteeth is a shoulder 101, formed by cutting out a portion of the wheel below the teeth. Between the two sets of teeth on each wheel isa type-segment 102, which has a cut-off portion 103 to correspond with the circle of the face of the wheel 97. This se ment carries a seriesof types 104 on its ace, these pulse of the guiding the carriage and preventing types representing the ten numerals. A motor-spring 105is secured to each type-wheel and to the transverse bar 81 for the purpose of normally urging the wheels in a certain direction. Mounted upon a carriage-shaft 106, which extends across the frame 82 are a series of stop awls 107. These stop-pawls engage with t e ratchet-teeth 98 and holl the wheels against rotation under the ims rings 105. The opposite end of each awl has a lever 108, which extends rearwar ly from the shaft. Each lever is also provided with a spring 109, which is secure to the transverse bar 89, so as to constantly urge the lever in such direction that the pawl 107 will engage the teeth 98. These sto pawls are separated from each other by col ars 110 on the shaft 106. In order to provide for operating this part of the device, a frame 111 is pivotally mounted upon a shaft 112, extending across the machine. This frame is provided with a screw 113,

adapted to engage the lower end of any of the its pivot to raise the screw or stud 113, it

will be obvious that the lever 108 will be so moved as to swing the st0p-paWl out of en 'gagement with the teeth 98. The shaft 112 is also used for the pivoting of a series of keylevers 114. Each of these levers is provided with a key 115, and the bar 111 is provided with a cross-piece 116, adapted to engage with the lower edges of the key-levers, so that when any key is depressed it will swing the frame 111 about the shaft 112 and cause the stud 113 to operate the stop-pawl and disengage it from the rack. A spring 117 is employed to normally keep each key in elevated position and the weight of the outer end of the frame 111 keeps it in'normal position. On the outer end of each key-lever is a projection 119, to the lower end of which is pivoted a bell-crank 120, having a catch 121. A spring 122 normally operates to keep the catch in operative position, and when the keys are depressed these catches engage a stationary transverse bar 123. the key in its lowered osition.

I provide means or accomplishing the proper rotation of the type-wheel correspond- This locks ing to the key depressed, in order to cause the number on the type-face104, which corresponds to the key to be rotated to the proper position for\ registration. In order that this may be done, I provide a graduated bar 124, having a series of steps or teeth 125. The tooth at the left is designed to operate in conjunction with key No. 1, which indicates the numeral 1, the second key with'the key numbered 2, &c. Each successive step after the first is depressed a constant distance back of the one. at-its left, so that, for example, the step No.- 5 is four steps to the rear IZU This graduated bar is pivoted by means of a frame 126 upon the shaft 40, and-is designed to swing with the ty e-wheels whena key is operated. By the (epression of a ke the catch 121 is locked in position and the evice is set. 'No operation of the type-wheel except to release it from the stop-pawl is accomplished by this mechanism; but as soon as this release takes place the type-wheel rotates and with it the frame 126 and graduated bar 124. a This motion is limited b stops 126 Figs. 1 and 2. A spring 126 is provided for returning the frame 126 to place. The carriage, as has been described, is at this point situated in such a position that the type-wheel which corres onds with the particular column of figures 1n which the one being registered is located is ready to move into units place, and when thisrotation of the type-wheel and the frame 126 takes place the graduated bar 124 swings over the transverse bar 123, and that step of the bar which corresponds with the particular key depressed will strike the latch 121 and permit the latter to be disengaged from the bar 123, so that the key will resume its normal 'osition. This operation swings the stu 113 away from the lever connected with the stop pawl, so as to permit the latter to be swung by the spring attached thereto into engagement with the tooth 98, which happens to be in proper position for engagement at that time. The parts are obviously so arranged and timed that that tooth which engages with the stop-pawl corresponds with the step which disengages the latch 121. For example, if No. 5 key has been depressed No. 5 step will disengage the latch 121 connected with that key, and by the time this step reaches such a positionas to cause this disengagement the fifth tooth of the rack 98 will be in position ready to be caught by the stop-pawl. The parts having 0 erated in this manner the type-wheel will 0 course be left in a stationary position with the numeral 5 in printing or re istering position.

It was stated a ove that the operation of the arm 79 caused the carriage to move upward one step. As this arm is mounted by means of a pivot 127 upon a projection 128 on the frame 111, it will be obvious that the operation of this frame through the depression of any one of the keys will place the projections 75 and 76 in such position as to provide for the feeding forward of the carriage one step when the key is a ain released, so that the arm 79 can descen into normal position. It has been stated above that the graduated bar 124 is freely pivoted upon the shaft 40. It is rovided, however, with a projection 129, W ich engages With-the rear face of the units type-wheel, so that the rotation of the type-wheel will cause the rota tion of the graduated bar. This projection 129 is mounted so as to always be opposite the type-wheel which is in operative or units position as the type-wheels pass it in the travel of the carria e. The carriage cannot be returned to initlal position until all of the type-wheels have been returned to their initial positions, because they would engage the projection 129.

0a e-retm'n'in'g mechanism-The lever 51, whic has been described, together with the bell-crank and other'features mounted thereon, constitute a portion of a means which I employ for returning the carriage to initial osition after it has been moved as far as may be desired to the left by the operation of the spring 93. The operation of this lever has been described and need not be repeated. In the perforation 53, with which it is rovided, is secured a flexible member 130 ig. 8) in the form of a belt or ribbon. This member passes over two idler-pulleys 131 and 132, through an opening 133 in one of the side plates 32 and is connected with the carriage in any desired manner, so that the swinging of the lever 51 in the manner described above will cause the flexible member to pull the carriage back to initial position in an obvious manner when the crank is swung through a complete oscillation. The flexible member is preferably formed of some pliable material and provided with .a swivel 134, having a take-up screw to provide for the stretching thereof.

Restoring mechanism.-For the purpose of restoring the type-wheels to initial position and stopping them uniformly in that position a bar 135, Figs. 1, 2, and 3, is mounted parallel with the shaft 40 upon arms 136, these arms being pivotally mounted upon the main shaft and having a motor-spring 136 One of the arms is provided with an elongated slot 137, through which a stud 138 on the shaft projects. This bar is located between the rear of the gear-toothed segments 99and the shoulders 101, The bar 135 is provided with passages 139, Fig. 13, in which are located bolts 140,

rovided with springs 141 for normally foremg them outwardly. These bolts bear upon a rod 142, extending along the bar 135, which is provided with end extensions 143, passing through the bar and secured on the opposite side by pins 144. This constitutes a resilient buffer for the oscillating frame on the carriage. By the provision of the slot 137 it will be seen that upon the oscillation of the frame the bar 135' is not moved until the first part of the stroke is commenced. When the carriage is in such a position that any of the shoulders 101 of the type-wheels are opposite the bar 135, the rotation of the oran to return the type-wheels to original position will cause such shoulders to be engaged by the bar and stop them in that position. This is timed to occur on the finish of the first stroke of the operating-crank when the stud 138 enga es the end of the slot 137, and it isprovided or the purpose of turning the type-wheels back to zero and taking away the jar on the type- ,wheels when they come to a dead stop against Zer-'7cey.I prefer to have a zero-key connected with a lever 145, provided with anindependent escapement and connected with the zero-ke second small rubber roller 154.

the frame 111, so that the action of the motor-spring on the mainframe will pull this escapement out of the escapmentteeth, making the action positive and quick. As

has no other ofiice to perform than that 0 space for every depression of the key it is not desirable to have it connected'with the mechanis'm for operating the graduated bar 125.

Accordingly the lever is loosely pivoted upon the shaft 112 in asimilar manner to the levers 114. The lever'extends to the rear to a point even with the end of the projection 128, and it is provided with an oflset 146 and with a bar 147 similar to the bar 79. The bar 147 is connected with one of the levers 73, described above, it being understood that this lever is similar to the other one, which is connected to the bar 79 and is provided with projections 75 and 76 in the same manner. he operation of this device will be obvious, and it affordsmeans to effectively feed the carriage forward-without disturbing any of the other mechanism. Printing mechanism.In order that the o, erations of the calculating machine may be effectively recorded, a pair of brackets 148 are provlded, having a roller 149 journaled thereon for' carryingia roll of paper 150. This paper is fed through an opening 151 in the rear wall 29 of the machine to a small rubber roller 152, thence between this andan impression-roller 153', and finally out of the machine between the impression-roller.and a These rollers are journaled upon a frame 155, which in turn is pivotally mounted by means of a shaft 156, passing through the bars 38. The roller 153 is mountedupon a shaft 157, which is'provided with a' ratchet-wheel 158. For the purpose of operating this ratchet-wheel in order to rotate the impression-roller and feed the paper forward a step at a time, according to the operations of the crank 62 and main shaft, the transverse shaft 156 is provided with a pivoted frame 159, having a cam-surface 160, Figs. 5 and 7. Upon this frame is mounted an arm 161, Fig. 1, normally pro jecting upwardly from thetransver'se shaft,

and upon this arm is pawl 162, having a toot gage-the teeth of the ratchet-wheel. 158. will be readily obvious that the oscillation of 163, adapted to enfeeding the carriage forward one.

pivotally mounted a the frame 159 about the shaft 156 will movethe pawl 162, and consequently turn the shaft 157. The operation of the frame in this manner is brought about bythe provislon of means connected with the shaft 40 for engaging the cam-surface 160. This means 1s represented by a segment 164, the rear surface of which is adapted to engage the camface 160. The arm 161 is normally held against a stud 165 by a spring 166, connectin the arm with the frame 155.

11 order to provide for swinging the-frame. 155 about the shaft 156as a center, so as to present the impression-wheel with the paper thereon to the type-surface 104,. the shaft 156 IS provided on its left end with a rigidlymounted lever 167. This lever has a lateral extens on 168, carryin a set-screw 169 for ad ust1ng purposes. Trojecting from the shaft 156 and located in parallelism with the lever 167 is a thin disk 170, Figs. 2 and 3. Loosely mounted on the the parts 167 and 170 and resting on the setscrew 169 is a forwardly-extending lever 171, Fig. 9,- rovided with a cam-surface 172. This camrsurface is in the direct path of a cam' 173, mounted on an arm 174 .on the shaft 156 between shaft 40. The oscillation of the-shaft 40, as i sion-roller against the type-surfaces on the wheels 97. It will be seen, therefore, that the oscillation of the shaft 40 through the operation of the crank will not only cause the paper to be forced against the printingtypes, so as to record the number which has been set up in the machine, but will upon its return stroke feed the paper forward one step through the operation of the pawl 162 and leave the paper in position for the next impression. On the r1ght-hand end of the shaft 156 is rigidly mounted an arm 175, Fig.8, designed'to come in contact with a stop 176 on the plate 32, so as .to provide for limiting the motion of the frame 155 in one direction. The shaft 157 is rovided with a finger-wheel 177, by which the impression-roller may be operated in an obvious manner. A spring 178 is also mounted between the frame 155 and the bar 37, so as to press the arm against the stop 176. a

Ink'ing device.- -For the purpose of supplying ink to the printing device I prefer to employ an inking-ribbon 180. The means which I prefer to employ for feeding this ribbon between the impression-roller and the printing-surface 104 will now be described. Mounted upon the upper end of the left-hand standard 38 is a casing 181 for supporting a shaft 182, Fig. 3. This shaft carries a roller for receiving and winding up the printingribbon. Connected with the roller and mounted upon the shaft is a ratchet-wheelv 1831 A pawl 184 is mounted toengage the to rock the shaft 156 and force the impresratchet-wheel and is held against the teeth thereof by a spring 185, being pivoted on a shaft or s'tud 186, which also carries a guidespool 187 for the inking-ribbon. Connected with the lever 159 is an upwardly-extendmg push-pawl 188, the upper end of which passes through a slot 189 in the cover 37 of the machine and is adapted to engage the teeth of the ratchet-wheel so as to give it a forward motion every time the lever 159 is operated. The pawl 184 prevents the rotation of the shaft 182 in the wrong direction, while the pawl 188 positively, rotates it to wind up the inking-roller. The winding up of the ri bon is therefore effected in such a manner that the same surface will not be presented'to the type-surface on two successive operations. For the purpose of providing a let-off roller to contaln the ribbon when 1t is first placed on the machine and to wind it up again, so as to be used successively, the right-hand standard 38 is provided with a casing 190. This casing supports a shaft 191. for containing a ribbon-holding roller or spool 192. Mounted upon a shaft 193 is a guide-wheel 194, similar to the wheel 187 and 1n line both with the latter and with the spool 192. The end of the spool 192 is provided with a square opening 195, into which a shaft 196, havin a square end, is designed to be placed. T is shaft is provided with a crank 197 for oper-' ating the spool to wind the ribbon upon it from the spool at the other end of the machine. For the purpose of regulatin the tension on the shaft 191 I have provideda thumb-screw 198, bearing upon that shaft. It will be obvious that the operation of the main crank 62 will, through the instrumentality of the lever 159, cause the ribbon to be gradually wound up upon the left-hand side of the machine, being let off from the spool 192 as fast as desired, the ribbon passing directlyabove the line of travel of the type wheels when they are in initial or printing position and under the impression-roller.

Adding-wheels.The mechanism so far described is provided for the purpose of registering numbers as they are struck on the keys and for accurately feeding the carriage so as to provide for presenting the numbers in a regular way without reversing the order and also without necessitating the settin of the carriage to provide for the proper p acing for the first figure at the left.

ing the numbers together, and I will now proceed to describe theadding mechanism shown in the drawings. J ournaled through the side plates 22, between the main shaft and the casing 26 at the front, is a transverse shaft 200. Fixed to this shaft in any desired manner are two standards 201, carrying a transverse shaft 202. Mounted-upon the It also 5 provides for the printing of numbers after latter shaft are a series of adding-wheels 203. These wheels each consist of a disk carrying on the face thereof the ten numerals. Rigidly connected with each of the addin wheels is a spur-wheel 204, by means of whic 1 power is designed to [be transmitted to the adding-wheels in order to rotate them a proper number of steps, and I preferably also provide a series of idler spur-wheels 205, mounted on a shaft 206 on the standards 201 for the purpose of'transmitting power to the spur-wheels 204 from the gear-segment 99, although it will be readily understood that the particular method of transmitting motion from the teeth 99 to the wheels 204 is a matter that can be accomplished in many ways. The standards 201 being pivotally mounted by means of the shaft 200, it will be readily understood that if they are oscillated so that the teeth of the wheels 205 will engage with the teeth 99 that are placed opposite them by the registration on the typewheels of the number to be added the rota- I tion of the type-wheels will cause arotation of the adding-wheels. Before describing how this is accomplished I will state that the operation is intended to take place not when the type-wheels are first rotated to their positions for registering, but when they are returned to initial position by the operation of the crank 62.

As has been set forth above, the type-Wheels are operated in such a manner that the left-hand one represents the first numeral of the number to be added irrespective of the order which it may occupy. Furthermore, the registering of additional numerals is accomplished with the movement of the car riage one space to the left for each one. Consequently the type-wheels being placed in initial position with the left one immediately to the right of the right-hand adding-wheel, the feeding of the carriage one step to the left by the operation of registering one figure places the left-hand segment 97 exactly opposite. the right-hand wheel 205. If, then, other figures are included in the number, the type-wheel carriage moves to the left one space for each additional figure, and the segments 99 consequently are placed opposite a sufficient number of the addin -wheels to provide for the number of figures 1n the number to be added. For example, if the number contains three figures the third typewheel from the left will be opposite the right hand addin -wheel', or, rather, the righthand spur-w eel 205, and the left segment 99 will be opposite the third spur-Wheel from the right. It will be seen, therefore, that upon the oscillation of the frame 201 about its pivot in the position shown in dotted lines in ig. 1 the respective teeth of the segments 99 wheels will take place until the crank 62 is turned so as to restore the type-wheels to original position. This will accomplish the T rotation of each adding-wheel as manyspaces as the type-wheel which is connected therewith at the time has been rotated out of initial position previous to the enmeshing of the teeth 99 and 205. This rovides for the accurate adding of the num ers which may be registered upon the type-wheels and printed therefrom, the printing, as will be understood, taking place before the adding operation is started.

adjacent teeth of the wheels 205.

Look for adding-wheels.-In order to lockthe adding-wheels which may not be in enbeing rigidly fixed with respect to the carriage, it will engage with all of the wheels 205 if the frame 201 is'oscillated into proper position. Therefore before any of the type-wheels are fed forward by the escapement device and after any of them are fed forward those wheels 205 which do not engage with the type-wheel segments will -engage with the locking-bar 207, and therefore the turning of the crank 62 will be positively prevented from operating any adding-wheels except those which are connected with the proper type-wheel segments. For. the purpose of accomplishing the oscillation of the frame 201 a lever 208 is rigidly mounted upon the shaft 200, Figs. 2 and 5. Connected with this lever by a bar 209 is a thin member 210, spaced from the lever 208. The bar is provided with a set-screw 211, on which .rests a lever 212. A spring 213 normally urges the bar 209 in an upward direction against a stop 214. This consequently is designed to normally push the lever 212 in anupward direction and force a cam-surface 215 thereon into the path of a movable member 216, mounted upon the segment 164, which, as has been seen, is connected with the main shaft 40, Fig. 17. The member 216 is pivotally mounted by means of a stud 217, so that it can swing into the positions shown, respectively, in Figs 5 and 6. The member 216 is provided with a stud 217*, engaging a stop 164" when the member is in its outer position, and a spring 216 is provided for engaging the' stud and normally forcing it against the stop, as is shown in Fig. 17. The spring 216 merely forces the member 216 into such a position that the cam 215 can pass behind it on the return stroke. When the crank on the main shaft is operated, the member 216 engages the cam-surface 215, causing the lever 212 to press down on the set-screw 211, thus-causing the shaft 200 to turn slightly and swing the idler-wheels of the adding mechanism to the rear and into mesh with the type-wheels and locking-bar. be proper amount of oscillating motion to be imparted to the frame 201 in this manner can be adjusted to any desired degree of accuracy by means of the set-screw 211. The member 216 slides on the cam-surface 215, and at the end of the stroke a stationary cam-surface 218 on the segment 164, which has acted as a stop'for the member 216 during the above-described operation, engages with-the cam 215. The member 216 then drops back to initial position, as indicated in Fig. 5. On the return stroke of the crank the cam 215 slides back on the cam 218, between the latter and the member 216; and thenengages with the opposite or inner surface of the member 216, freeing the lever 212 and allowing the spring 213 to pull it back to initial position as it leaves the cam-surface 218. As the lever 212'is free to move in an upward direction the cam 215 will pass over the member 216, as indicated, until it reaches its initial position.

Carrying mechanism.-So much of this mechanism as has been described provides for the transfer-of a number from the typewheels to the adding-wheels, and it will be obvious that the repeated transfers of the numbers in this manner will provide for accurate adding of the same. A device has to be provided, however, forcarrying a figure' from one column to the next higher when the sum of the figures added amounts to 10 or more. For this purpose the adding-wheelsare each provided with a projection 219, located at the proper distance from the zero or tenth numeral thereon. When an addingdisk completes a revolution, this projection is adapted to come into contact with a tooth 220 upon a bell-crank 221, Fig. 15. This bell-crank is pivotally mounted upon a shaft 222 upon the standards 201 and is provided with a forwardly-extending projection 223. This projection passes between a pair of extensions 224 and 225 upon a lever 226, Fig. 14. The bell-cranks and levers are in number preferably equal to one less than the number of adding-disks, and the levers are mounted upon a shaft 227, journaled in plates 228. Each of the last mentioned levers is provided with a projection 229, by meansof which it is connected with a spring 230 for normally forcing it into its lowest position with the upper extension 224 against the forward extension 223 of the bell-crank. Directly in front and parallel with the shaft 200 is a shaft 231, Fig. 12. This is journaled through the plates 228. These plates are connected at their upper ends by a each guide-rack is equal to the number of bell-cranks 221. The upper guide-bar is preferably provided with a cross-bar 236, passing through the ends of the teeth between the slots and servin to guide a series of slides 237. These slides pass through both series of slots and are vertically movable therein. These slides are each provided with one or more gear-teeth 238, adapted to mesh with the teeth of the gearwheels 204 and constituting a rack therefor. Each one is also provided with aforwardlyextending tooth 239, adapted to rest upon a guide-rack 232 when the slide is in the lowest position. Each slide is also provided with two additional teeth 240 and 241 on opposite sides thereof. A spring 242 normally forces. each slide downward, so that the tooth239 will engage upon the upper surface of the bar 232.

Mounted loosely upon the shaft 231 are a series of triggers 243, Fig' 16. Each is bifurcated and provided with a pivoted tooth 244 for engaging the tooth 241 and with a spring 245 for engaging a nib 244 on thetooth and yieldingly holding the tooth and trigger in fixed position with relation to each other. As the triggers and slides are restored to initial position simultaneously, the tooth 241 might strike the tooth 244 on the back stroke if the latter were rigidly mounted. The projection 222 has a catch 246 for holding the end of the trigger.

When the parts are held in the position shown by Fig. 1 by the engagement of the end of the trigger with 'the catch 246, the slide is held in such position that its teeth will engage with the teeth-of the gear-wheel 204. When the carrying-point 219 swings to the right from the position shown in Fig. 1, so as to engage the under surface of the tooth 220 and swing the bell-crank upon its pivot, the lever 226 will be oscillated in an upward direction, so as to disengage the catch 246 from the lever 245 and permit the latter to swing to, the rear by the operation of a swing 247. This unlocks the slide 237 and permits its spring 242 to move it into a lower position, in which the tooth 239 will engage with the bar 232. As the space between the tooth 239 and bar 232 in the highest position of the slide is equal to the pitch of the gear-Wheel 204, this will cause the rotation of the corresponding adding-wheel one step. The slide 237 is obviously so placed with relation to the carrying point or projection 219, which operated upon the bell-crank 221, that it operates the next column of figures.

When the adding-wheels are in gear with the type-wheels, they are out of gear with the slides 237. If the adding-wheels were ro- *tated suff ciently to carry one from one column to the next, the slides would fall without performing the carrying operation. I

therefore provide means for holding up such slides as are released by the projection 219 until'the adding-wheels are thrown into gear with the slides. This means is then moved on the return stroke of the crank to release such slides as have been set free, and they will then fall and perform their function.

A shaft 248 is journaled upon the plates 228 and carries a bar 249, which is adapted to engage under the teeth 240 and holdthe slides in elevated position, Fig. 12. This bar is oscillatable with the shaft 248, and the shaft is provided with a lever'250, which extends from the outer surface of one/of the plates 228 and is normally urged in one direction by a spring 251, Fig. 8. This lever is adapted to be operated by a lever 252, m ounted to oscillate upon a shaft 253 and rigidly connected with a lever 254. The levers 252 and 254 therefore constitute a bell-crank for operating the lever 250.- The shaft 253 extends to a position near the right-hand side plate 32, and the lever 254 is provided with a projection 255, extendingto the right of this side plate and in the path of the segment 42.

Normally this projection is held by the segment in a position shown in Fig. 8, such that the lever 252will bear upon the lever 250 and hold the bar'249 in such position that'it will not engage the teeth 240; but when the lever 62 is oscillated and the type wheels are moved out of engagement with the slides the segment is turned so that the projection 255 slides off the edge of the segment, as indicated in dotted lines in Fig. 8. The lever 250 is thereby relieved from the above-mentioned position, and the spring 251 pulls it into the position indicated in dotted lines in Fig. 1, so that the bar 249 is ready to engage the teeth 240 and lock the slides in elevated position. This prevents the operation of the slides until the adding-wheels are brought back into engagement with the slides. The

engagement of the teeth 240 by the bar 249 except so much of it as is designed to carry from that wheel to the next one. Consequently in place of the slide 237 on the unitsadding Wheel I have provided an upwardlyextending blade 257, Fig. 12, and this blade is provided with a tooth 258, extending to the rear and adapted to engage between the teeth of the Units-adding-whcel pinion. As the units-wheel is not acted upon in carrying, this tooth is designed to act with the slides which are mounted adjacent to the other typewheels for locking the units-wheel.

Fig. 18 shows a modified form of trigger 243*, having a yielding tooth 244' and provided with a spring 244 for operating thev tooth. This prevents the tooth from being sto ped if it strikes the tooth 241.

estoring device for the carrying mechanisms-4n order to provide for restoring the parts to normal position, so that they can be operated to add the numbers when it is time for this operation to take place, a transverse shaft 259 is mounted upon the side plates. This shaft carries a pair of levers 260, Fig. 7, which are connected by a cross-bar 261, Figs.

- 1 and 4. This cross-bar is designed to engage the rear surface of the trigger 243 and restore it to normal position when the shaft 259 is oscillated. This is accomplished by forcing the upper end of the trigger to slide along the lower inclined surface of the catch 246, so as to engage the forward surface thereof when the lever 226 is moved to normal position. Another pair of levers 262 is mounted upon the shaft 259 and provided with a cross-bar 263. This cross-bar is adapted when pushed upwardly to engage the lower ends of the slides 237 and restore them to their normal elevated position. For thepurpose of operating the shaft 259 it is provided with an arm 264 outside one-of the casings 32, Figs. 5, 6, and 7. This arm is normally urged against a stud 265 by a spring 266; but to force it into an operating position an arm 267 is provided adapted to engage with it. This arm is ivoted upon a shaft 268, mounted in journa s 269 upon the side plates 32.v It is provided with a rearwardly-extending arm 270, constituting, with the arm 267, a bell-crank. This bell-crank is provided with a stud or shaft 271, on which is pivotally mounted a lever 272, having a tooth 273. On'a projection 274 below the shaft 271 the lever is connected by a spring 275 with the bell-crank. This s ring obviously operates to normally force the lever into the position shown in Fig. 6, in which the left-hand side of the lever engages a shoulder 276 on the inner side of the arm 270.

Upon the segment 264 is a projection 277, having a stud 278 which engages the tooth 27 3. This constructionprovides for a positive operation of the bell-crank 267 to 270 in one direction when the stud 278 engages with the tooth 273 and permits the stud to pass over the tooth 273 when the segment moves in the other direction. A spring 279 yieldingly resists the action of the stud 278 in an obvious manner. When the operating-crank is pulled, the stud 278 forces the lever into such position that the bar 263 engages the bottom of the slides and forces them upward, the tooth 241 moving above the-position'of the tooth 244 on the trigger and the bar-261 engaging the rear surface of all the triggers,

so as to force them inward and causing the teeth 244 to engage the teeth 241. Simultaneously the ends of the triggers will engage the catches 246 and lock them in position, as

shown in Fig. 1. At the same time a lockitifgbar 249 drops in front of the teeth 240 onRthe slides, and when released by thestud 278, passing beyond the tooth 273, the parts Will assume the position shown in Fig. 1 eigce t for the fact that the bar 249 will engage t e under surfaces of the teeth 240. This is all timed to occur before the adding-wheels are.

acted upon by the action of the operatingcrank. g

It will be seen from the description so far given that in addition to the registering device described above the automatic adding of the numbers is effectively provided for in this construction and that no additional manipulations are required on the part of the operator than the mere operation of the ke s and the crank 62 to secure the printing of tfie numbers to be registered, as well as their addition upon the adding-wheels. The sum of the numbers added can at all times be seen through an opening 280 in the casing 31.

Zero-setting device.ln order to provide for resetting the adding-wheels to zero position after the gum is. completed, Iprovide .certain mechanism which is illustrated in Fig. 4, reference-salso being had to Fig. 1-. Mounted in the upper part of the casing is a shaft 281, having a crank 282, by means of whichit can be rotated. This shaft is journaled in a hanger 283 upon the inside of the casing, and hasa crank 284 connected by a spring 285 with a frame 286. As will be readily understood, this spring normally holds the shaft in a certain position. Upon the shaft is mounted a rubber roller 287, hav ing a portion 288 of its surface cut away upon a chord of its circumference. Mounted on and fixed tothe shaft 231 is a lever 289, having a spring 289 and a key 290. By ressing the key 290 with the left hand the ame 228 is swung forward and the teeth 238 are swung out of engagement with the addingwheel gears. By holding the key down the adding-wheels can be turned by the operaroller 287 engaging the teeth of the gears 205, so as to rotate. them in the opposite direction to that in which they are rotated in the operation of adding. This can be carried on until each carrying-tooth 219 is in engagement with the top of the corresponding tooth 220 on the bell-crank 221. This places all the adding-wheels in the zero position, and, if necessary in order to accomplish this result, the rubber roller can be rotated more than once. The spring 285 normally keeps the roller in the position shown in Fig. 1, so that it will be out of engagement with the teeth of the wheels 205. g

Adding-wheel-shifting device.1t is-some times desirable to throw out the adding mechanism, so that the registration of numbers can 'be accomplished, together with the printing thereof, without disturbing the sum tion of the crank 282, the flexible rubber This is de down he with affor'wai'd 6551361181 293 i a ap amove. This. 1'

in a tem 294,, secured; tj

casingaiangis'pliovided witm i a m e 2. i 'ri r y: heldi g vatedposition, When thejkey', is Idep Head-2 2 enga wi h'th "p oic q and elevatesfthelever212, so that its c surface will b 'ef outer the. path" of the thus disconnecting the adding- A cf-wheels and preventing theifbeing. shifte into en agement the'r'e- 30' member wheels Withi 'When the'key is he d down in this manner,-any desired sumsoan be'struck off on the main crank ing-wheels.

Ewor-correcting device;-If in the operation of the machine the wrong key is struck, it is desirable to have means provided so that the error can be corrected before the number is added. I prefer to accomplish this by means of the mechanism illustrated principall in Fig. 9. Loosely mounted upon the sh t 156 between the levers 159 and 171 and extending downwardly is a lever 297, Fig. 9. Thislever has a stud 298, which is directly below the lever 171. The lever 297 is provided with'a projection 299, to which is connected a rod 300, which is provided with a horizontal ortion 301, passing through an elongateds 0t 302 i n a bracket-303 on the lever 161. The horizontal portion 301' of this rod engages under the pawl 162, and when it is raised it disengages the tooth 163 of the pawl from the ratchet-wheel 158. In normal position the rod 300 is lowered on account of the fact that the lever 297 is pulled into contact With-a stud 304 by means of a spring 305. The

without disturbing the addthe positionsbell-cit k "07* F ig'. 9','ag'ainstwhich a hea dl292 upon are the registering-keys and printed by operating lever 297 ispivotally connected with a bell crank 306, the other end of which is connected Witha bell-crank 307, mounted on the shaft ssing the key 311 the link 309-is d in ig. 9, 'and the leve 297= and ls'd S Wlin g to thP0 S iti0liS Ire t h 'i e, hih Fthefq inej pm s htofr tathe.d r pondn a dmawh libnep n b k a h m }ing ,fof '1 the crank restores the addingwvheels. This is due to the fact'that the addin -.wheels 1 not being'in gear with thetype-wheei'are by this operation brought into gearwith the slides. Itherefore provide means for throwing the lever 272 forward, so that the stud 278 wil clear it when the crank is ulled'. The means which I have' illustrate plishin this urpose comprises a stud 312 on the bel prank 306. The stud is so placed as to engage the lever 272 near the point 273. The adding-wheel-shifting device is also affected in the same manner, and to obviate this I have provided the pivot 271 with an extension 313. This is connected by means of a rod 314 with the key-stem 293. (See Fig. 5.) This rod is guided in a bracket 315, (shown on Fig. 2,) secured to the casing in such a way as to place the parts in the necessary position; It will be seen that pressing down the key 295"throws the point 273 forward and out of the path of the stud 278 simultaneously with the operation of the lever 212;

Lock for the adding-wheel frame and carrymy dem'ce.In Figs. 18 and 19 I have shown a device for locking the adding-Wheel frame Which'is desirable because under certain conditions the force required to throw the detent lever 172 out fromthe slides 156 might be suflicient to throw the frame backward and the slide teeth out from engagement with the adding-wheel pinions. If these parts were held in that position, the act of carrying might beprevented and the adding-wheels left; without support. A strong spring could be used'for accomplishing this result; but I prefer to loosely mount an arm 317, Figs. 18 and 19, on'the shaft 200 near to the left side of; the frame'261. It is also mounted on the for accomywhichprojects 'under the shaft 259 and limits the motion of the adding-wheel frame. ll-loosely pivoted also upon the shaft 200 is another arm "319, which has journals 320 oc It 7.0751110. dh t b e i sf a th s would l efi s t ee hown in dotted lines, which operate the rod -12, .0.i stgqthrpwth a shaft 231 and is provided with a finger 318, 

